Electrical/Electronic Components, Installed Positions
ABS/EDL/ASR Bosch 5.3, electrical/electronic components and installed positions
1 - ABS hydraulic unit -N55-
The hydraulic unit consists of the following components:
^ ABS return flow pump -V39
^ Checked electrically via On Board Diagnostic (OBD)
^ Valve block (contains inlet and outlet valves)
^ ABS return flow pump -V39- and valve block must not be separated from each other.
^ Multi-pin harness connector with terminal assignment
2 - ABS control module (w/EDL) -J104-
^ Checked electrically via On Board Diagnostic (OBD)
^ Installation location: At hydraulic unit on left side of engine compartment.
^ Test of multi-pin connector to control module
^ Do not disconnect harness connector (26 pin) until after successful On Board Diagnostic (OBD). Switch ignition off before disconnecting harness connector.
3 - Hydraulic unit for ABS/EDL and ABS/EDL with ASR-N55
The hydraulic unit consists of the following components:
^ ABS return flow pump -V39-
^ Checked electrically via On Board Diagnostic (OBD)
^ Valve block (contains inlet and outlet valves)
^ ABS return flow pump -V39- and valve block must not be separated from each other.
^ Multi-pin harness connector with terminal assignment
Characteristic
Can only be identified externally via the differing part numbers for the hydraulic control units.
4 - Control module for ABS/EDL and ABS/EDL with ASR -J104
^ Checked electrically via On Board Diagnostic (OBD)
^ Installation location: At hydraulic unit on left side of engine compartment.
^ Test of multi-pin connector to control module Page 01103
^ Do not disconnect harness connector (26 pin or 31-pin) until after successful On Board Diagnostic (OBD). Switch ignition off before disconnecting harness connector.
Can only be identified externally via the differing part numbers for the hydraulic control units.
For ASR, the connection of the wiring harness for the ABS control module -J104- has 5 additional terminals (31-pin).
5 - Traction control indicator light -K86-
^ Installation location: In instrument cluster
Function:
6 - Warning light for brake system -K11 8
^ Installation location: In instrument cluster
Function:
7 - ABS warning light -K47
^ Installation location: In instrument cluster
Function:
8 - Brake system vacuum pump -V192- not installed in all vehicles
^ Installation location: At left in engine compartment
^ checked in Engine Control Module (ECU) via On Board Diagnostic (OBD)
^ Checking
9 - Brake booster pressure sensor -G294-
^ not installed in all vehicles
^ Installation location: in vacuum hose at brake booster
^ checked in Engine Control Module (ECM) via On Board Diagnostic (OBD)
10 - Brake light switch -F-
^ Can be checked in measuring value block
11 - Data Link Connector (DLC)
^ Installed location up to model year 2000: Below cover next to handle of parking brake lever
^ Installed location from model year 2001: Below driver-side storage compartment
12 - Rotor for front left and front right wheel speed sensors
13 - Right and left front ABS wheel speed sensors -G45- / -G47-
^ Checked electrically via On Board Diagnostic (OBD)
14 - Right and left rear ABS wheel speed sensors -G44- I -G46 (illustration for Front Wheel Drive -FWD-)
^ Checked electrically via On Board Diagnostic (OBD)
15 - Rotor for rear left and rear right wheel speed sensors (illustration for Front Wheel Drive -FWD-)